Upgrade to business for 12 hour flight?
Upgrade to business for 12 hour flight? Boeing 777 united flight from HK -> SFO. Should I upgrade from economy to united polaris business lie flat seats for me and my partner for $800 each? Is this a good deal or is this usual? Thanks for replies so far. To clarify, I have never flown business class before so really don’t know what it’s like for lie flat seats particularly for unite...